///////////////////////////////////////////////////////////////////////////////
// $Id$
//
// 3DimViewer
// Lightweight 3D DICOM viewer.
//
// Copyright 2008-2016 3Dim Laboratory s.r.o.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
///////////////////////////////////////////////////////////////////////////////

#include <osg/CEventHandlerBase.h>
#include <osg/OSGCanvas.h>

////////////////////////////////////////////////////////////////////////////////////////////////////
//!\brief   Constructor. 
//!
//!\param [in,out]  canvas  If non-null, the canvas. 
////////////////////////////////////////////////////////////////////////////////////////////////////
scene::CEventHandlerBase::CEventHandlerBase( OSGCanvas * canvas /*= NULL*/ )
    : m_canvas( canvas )
{

}

////////////////////////////////////////////////////////////////////////////////////////////////////
//!\brief   Sets the canvas. 
//!
//!\param [in,out]  canvas  If non-null, the canvas. 
////////////////////////////////////////////////////////////////////////////////////////////////////
void scene::CEventHandlerBase::setCanvas( OSGCanvas * canvas )
{
    m_canvas = canvas;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
//!\brief   Refreshes. 
//!
//!\param   eraseBackground true to erase background. 
////////////////////////////////////////////////////////////////////////////////////////////////////
void scene::CEventHandlerBase::refresh( bool eraseBackground /*= true */ )
{
    if( m_canvas != 0 )
        m_canvas->Refresh( eraseBackground );

}
